In biology, a life cycle is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, and/or sexual reproduction.
In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.
Life cycles that include sexual reproduction involve alternating haploid (n) and diploid (2n) stages, i.e., a change of ploidy is involved. To return from a diploid stage to a haploid stage, meiosis must occur. In regard to changes of ploidy, there are 3 types of cycles:
Life Cycle is an album by American jazz drummer Whit Dickey recorded in 2000 and released on the Aum Fidelity label. Dickey leads the Nommonsemble, which includes Rob Brown on alto sax and flute, Mat Maneri on viola and Matthew Shipp on piano.
Reception
In his review for AllMusic, Sam Samuelson states "The Nommonsemble pull together a concise and pleasing recording that for the most part proves itself to be relevant and thought-provoking."
The Penguin Guide to Jazz notes that "They're a highly compatible quartet, four thinkers who prefer the dryer end of free jazz and, while the record isn't exactly exciting, it certainly makes its own space."
The JazzTimes review by Aaron Steinberg says "Though obdurate and knotty on the whole, Life Cycle maintains a calm and spacious core throughout, which is due largely to Dickey's drumming and his sensitive interaction with Shipp."
The term financial crisis is applied broadly to a variety of situations in which some financial assets suddenly lose a large part of their nominal value. In the 19th and early 20th centuries, many financial crises were associated with banking panics, and many recessions coincided with these panics. Other situations that are often called financial crises include stock market crashes and the bursting of other financial bubbles, currency crises, and sovereign defaults. Financial crises directly result in a loss of paper wealth but do not necessarily result in changes in the real economy.
Many economists have offered theories about how financial crises develop and how they could be prevented. There is no consensus, however, and financial crises continue to occur from time to time.
Types
Banking crisis
When a bank suffers a sudden rush of withdrawals by depositors, this is called a bank run. Since banks lend out most of the cash they receive in deposits (see fractional-reserve banking), it is difficult for them to quickly pay back all deposits if these are suddenly demanded, so a run renders the bank insolvent, causing customers to lose their deposits, to the extent that they are not covered by deposit insurance. An event in which bank runs are widespread is called a systemic banking crisis or banking panic.
The financial crisis of 2007–08, also known as the global financial crisis and 2008 financial crisis, is considered by many economists to have been the worst financial crisis since the Great Depression of the 1930s. It threatened the collapse of large financial institutions, which was prevented by the bailout of banks by national governments, but stock markets still dropped worldwide. In many areas, the housing market also suffered, resulting in evictions, foreclosures and prolonged unemployment. The crisis played a significant role in the failure of key businesses, declines in consumer wealth estimated in trillions of U.S. dollars, and a downturn in economic activity leading to the 2008–2012 global recession and contributing to the European sovereign-debt crisis. The active phase of the crisis, which manifested as a liquidity crisis, can be dated from August 9, 2007, when BNP Paribas terminated withdrawals from three hedge funds citing "a complete evaporation of liquidity".
The Great Recession was a period of general economic decline observed in world markets beginning around the end of the first decade of the 21st century. The exact scale and timing of the recession, and whether it has ended, is debated and varied from country to country. In terms of overall impact, the International Monetary Fund concluded that it was the worst global recession since World War II. According to the US National Bureau of Economic Research (the official arbiter of US recessions) the US recession began in December 2007 and ended in June 2009, and thus extended over 19 months. The Great Recession was related to the financial crisis of 2007–08 and U.S. subprime mortgage crisis of 2007–09.
Terminology
There are two senses of the word "recession": a less precise sense, referring broadly to "a period of reduced economic activity"; and the academic sense used most often in economics, which is defined operationally, referring specifically to the contraction phase of a business cycle, with two or more consecutive quarters of GDP contraction. Under the academic definition, the recession ended in the United States in June or July 2009. However, in the broader, lay sense of the word, many people use the term to refer to the ongoing hardship (in the same way that the term "Great Depression" is also popularly used).
What is BIOLOGICAL LIFE CYCLE? What does BIOLOGICAL LIFE CYCLE mean? BIOLOGICAL LIFE CYCLE meaning
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What is BIOLOGICAL LIFE CYCLE? What does BIOLOGICAL LIFE CYCLE mean? BIOLOGICAL LIFE CYCLE meaning - BIOLOGICAL LIFE CYCLE definition - BIOLOGICAL LIFE CYCLE explanation.
Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license.
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In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproducti...
published: 05 Sep 2017
Virus Life Cycle | Health | Biology | FuseSchool
Virus Life Cycle | Health | Biology | FuseSchool
In this video we are going to look at what happens when a virus invades a host cell. You should already have an understanding of what viruses are. If you want an introduction to viruses, watch this video first: https://youtu.be/rWkNvIUthBI
CREDITS
Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw)
Narration: Reshenda Wakefield
Script: William Haines
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and sha...
published: 01 Sep 2020
Meiosis, Gametes, and the Human Life Cycle
We know that your body produces more cells through mitosis. But where did your very first cell come from? It can't have been mitosis, because mitosis needs a cell to start with. As it turns out, meiosis and subsequent fertilization are the culprits! Meiosis is another kind of cell division, but it is different from mitosis. How is it different, pray tell? Watch and find out!
Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio
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Microbiology/Infectious Diseases Tutorials: http://bit.ly/Pr...
published: 29 Sep 2017
Bryophytes and the Life Cycle of Plants
We now understand that the ancestors of plants came from the ocean. But eventually, the first plants made their way out of the water and onto land. What did these plants look like? What functions were they capable of carrying out, and how did they reproduce? These plants were called bryophytes, and examples of these are mosses, liverworts, and hornworts. Let's get a closer look at these fascinating plants, and the life cycle of plants in general.
Script by Sheryl Hosler
Watch the whole Botany playlist: http://bit.ly/ProfDaveBotany
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio
EMAIL► ProfessorDaveExplains@gmai...
published: 02 Nov 2020
What is the Lifecycle of a Moss? | Biology | Extraclass.com
Watch More Videos @ http://bit.ly/extraclassapp, http://extraclass.com/
This video will help you to learn What is the Lifecycle of a Moss?
What is the Lifecycle of a Moss?
Long long years ago, a special group of plants with a sense of adventure began making the journey from water to land.
What were these plants ??
Moss !!
There are thousands of known species of mosses.
But Question is….
What plant group does Moss belong to?
Bryophytes include the various mosses and liverworts that are found commonly growing in moist shaded areas in the hills.
Bryophytes are also called amphibians of the plant kingdom because these plants can live on soil but are dependent on water for sexual reproduction.
The plant body of bryophytes is more differentiated than that of algae.
It is thallus-like...
published: 15 Apr 2020
The Viral Life Cycle
This CLEAR & SIMPLE tutorial describes the steps of the viral life cycle, including 1) Attachment 2) Entry 3) Replication 4) Biosynthesis 5) Assembly and 6) Release. Find more free tutorials, videos and readings for the science classroom at ricochetscience.com
published: 24 Nov 2014
Structure, Sexual and Asexual Reproduction, Biological Life Cycle of Mucor [Fungi] | Mycology Botany
Topics covered in this video-
00:00 Introduction to Mucor.
01:13 Structure of Mucor. [Mycelium, Rhizoidal Hyphae, Stoloniferous Hyphae, Sporangiophores]
02:21 Schematic Representation of Modes of Reproduction in Mucor.
03:39 Asexual Reproduction in Mucor. [Sporangiospores, Chlamydospores, Oidiospores]
07:14 Sexual Reproduction in Mucor. [Conjugation]
09:09 Germination of Zygospore.
10:04 Life-Cycle of Mucor explained with the help of diagram.
11:18 Practice Questions.
Link to the video on Process of Human Digestion- https://youtu.be/--ugTfNHzoE
Link to the video on Human Digestive System Part 1- https://youtu.be/RdAn39ysOkk
Link to the video on Kingdom Fungi- https://youtu.be/MrJzTLgmfh8
Link to the video on Genetic Recombination in Bacteria- https://youtu.be/z4ktz_ZvwXk
Link to the video...
published: 05 Nov 2021
BIOLOGICAL LIFE CYCLE OF HOUSEFLY|| HOUSEFLY LIFE CYCLE || LIFE CYCLE ||
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What is BIOLOGICAL LIFE CYCLE? What does BIOLOGICAL LIFE CYCLE mean? BIOLOGICAL LIFE CYCLE meaning - BIOLOGICAL LIFE C...
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What is BIOLOGICAL LIFE CYCLE? What does BIOLOGICAL LIFE CYCLE mean? BIOLOGICAL LIFE CYCLE meaning - BIOLOGICAL LIFE CYCLE definition - BIOLOGICAL LIFE CYCLE explanation.
Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license.
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In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, and/or sexual reproduction.
In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.
Life cycles that include sexual reproduction involve alternating haploid (n) and diploid (2n) stages, i.e., a change of ploidy is involved. To return from a diploid stage to a haploid stage, meiosis must occur. In regard to changes of ploidy, there are 3 types of cycles:
haplontic life cycle — the haploid stage is multicellular and the diploid stage is a single cell, meiosis is "zygotic".
diplontic life cycle — the diploid stage is multicellular and haploid gametes are formed, meiosis is "gametic".
haplodiplontic life cycle (also referred to as diplohaplontic, diplobiontic, or dibiontic life cycle) — multicellular diploid and haploid stages occur, meiosis is "sporic".
The cycles differ in when mitosis (growth) occurs. Zygotic meiosis and gametic meiosis have one mitotic stage: mitosis occurs during the n phase in zygotic meiosis and during the 2n phase in gametic meiosis. Therefore, zygotic and gametic meiosis are collectively termed haplobiontic (single mitotic phase, not to be confused with haplontic). Sporic meiosis, on the other hand, has mitosis in two stages, both the diploid and haploid stages, termed diplobiontic (not to be confused with diplontic).
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What is BIOLOGICAL LIFE CYCLE? What does BIOLOGICAL LIFE CYCLE mean? BIOLOGICAL LIFE CYCLE meaning - BIOLOGICAL LIFE CYCLE definition - BIOLOGICAL LIFE CYCLE explanation.
Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license.
SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ
In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, and/or sexual reproduction.
In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.
Life cycles that include sexual reproduction involve alternating haploid (n) and diploid (2n) stages, i.e., a change of ploidy is involved. To return from a diploid stage to a haploid stage, meiosis must occur. In regard to changes of ploidy, there are 3 types of cycles:
haplontic life cycle — the haploid stage is multicellular and the diploid stage is a single cell, meiosis is "zygotic".
diplontic life cycle — the diploid stage is multicellular and haploid gametes are formed, meiosis is "gametic".
haplodiplontic life cycle (also referred to as diplohaplontic, diplobiontic, or dibiontic life cycle) — multicellular diploid and haploid stages occur, meiosis is "sporic".
The cycles differ in when mitosis (growth) occurs. Zygotic meiosis and gametic meiosis have one mitotic stage: mitosis occurs during the n phase in zygotic meiosis and during the 2n phase in gametic meiosis. Therefore, zygotic and gametic meiosis are collectively termed haplobiontic (single mitotic phase, not to be confused with haplontic). Sporic meiosis, on the other hand, has mitosis in two stages, both the diploid and haploid stages, termed diplobiontic (not to be confused with diplontic).
Virus Life Cycle | Health | Biology | FuseSchool
In this video we are going to look at what happens when a virus invades a host cell. You should already have a...
Virus Life Cycle | Health | Biology | FuseSchool
In this video we are going to look at what happens when a virus invades a host cell. You should already have an understanding of what viruses are. If you want an introduction to viruses, watch this video first: https://youtu.be/rWkNvIUthBI
CREDITS
Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw)
Narration: Reshenda Wakefield
Script: William Haines
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
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Virus Life Cycle | Health | Biology | FuseSchool
In this video we are going to look at what happens when a virus invades a host cell. You should already have an understanding of what viruses are. If you want an introduction to viruses, watch this video first: https://youtu.be/rWkNvIUthBI
CREDITS
Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw)
Narration: Reshenda Wakefield
Script: William Haines
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV
Find all of our Biology videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0
Find all of our Physics videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTWm6Sr5uN2Uv5TXHiZUq8b
Find all of our Maths videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlTKBNbHH5u1SNnsrOaacKLu
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We know that your body produces more cells through mitosis. But where did your very first cell come from? It can't have been mitosis, because mitosis needs a ce...
We know that your body produces more cells through mitosis. But where did your very first cell come from? It can't have been mitosis, because mitosis needs a cell to start with. As it turns out, meiosis and subsequent fertilization are the culprits! Meiosis is another kind of cell division, but it is different from mitosis. How is it different, pray tell? Watch and find out!
Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys
Biopsychology Tutorials: http://bit.ly/ProfDaveBiopsych
Microbiology/Infectious Diseases Tutorials: http://bit.ly/ProfDaveMicrobio
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History of Drugs Videos: http://bit.ly/ProfDaveHistoryDrugs
EMAIL► [email protected]
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Book Depository: http://bit.ly/3aOVDlT
We know that your body produces more cells through mitosis. But where did your very first cell come from? It can't have been mitosis, because mitosis needs a cell to start with. As it turns out, meiosis and subsequent fertilization are the culprits! Meiosis is another kind of cell division, but it is different from mitosis. How is it different, pray tell? Watch and find out!
Watch the whole Biology/Genetics playlist: http://bit.ly/ProfDaveBio
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys
Biopsychology Tutorials: http://bit.ly/ProfDaveBiopsych
Microbiology/Infectious Diseases Tutorials: http://bit.ly/ProfDaveMicrobio
Pharmacology Tutorials: http://bit.ly/ProfDavePharma
History of Drugs Videos: http://bit.ly/ProfDaveHistoryDrugs
EMAIL► [email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
We now understand that the ancestors of plants came from the ocean. But eventually, the first plants made their way out of the water and onto land. What did the...
We now understand that the ancestors of plants came from the ocean. But eventually, the first plants made their way out of the water and onto land. What did these plants look like? What functions were they capable of carrying out, and how did they reproduce? These plants were called bryophytes, and examples of these are mosses, liverworts, and hornworts. Let's get a closer look at these fascinating plants, and the life cycle of plants in general.
Script by Sheryl Hosler
Watch the whole Botany playlist: http://bit.ly/ProfDaveBotany
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio
EMAIL► [email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
We now understand that the ancestors of plants came from the ocean. But eventually, the first plants made their way out of the water and onto land. What did these plants look like? What functions were they capable of carrying out, and how did they reproduce? These plants were called bryophytes, and examples of these are mosses, liverworts, and hornworts. Let's get a closer look at these fascinating plants, and the life cycle of plants in general.
Script by Sheryl Hosler
Watch the whole Botany playlist: http://bit.ly/ProfDaveBotany
General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio
EMAIL► [email protected]
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
Watch More Videos @ http://bit.ly/extraclassapp, http://extraclass.com/
This video will help you to learn What is the Lifecycle of a Moss?
What is the Lifecyc...
Watch More Videos @ http://bit.ly/extraclassapp, http://extraclass.com/
This video will help you to learn What is the Lifecycle of a Moss?
What is the Lifecycle of a Moss?
Long long years ago, a special group of plants with a sense of adventure began making the journey from water to land.
What were these plants ??
Moss !!
There are thousands of known species of mosses.
But Question is….
What plant group does Moss belong to?
Bryophytes include the various mosses and liverworts that are found commonly growing in moist shaded areas in the hills.
Bryophytes are also called amphibians of the plant kingdom because these plants can live on soil but are dependent on water for sexual reproduction.
The plant body of bryophytes is more differentiated than that of algae.
It is thallus-like and prostrate or erect and attached to the substratum by unicellular or multicellular rhizoids.
They lack true roots, stem or leaves.
However, They may possess root-like, leaf-like or stem-like structures.
Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.
Let’s learn more about Moss and it’s a life cycle
The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages:-
(1) Protonema and
(2) Leafy stage
The first stage is the protonema stage, which develops directly from a spore.
It is a creeping, green, branched and frequently filamentous stage.
The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud.
They consist of upright, slender axes bearing spirally arranged leaves.
They are attached to the soil through multicellular and branched rhizoids.
This stage bears sex organs.
The sex organs are multicellular.
The male sex organ is called the antheridium. They produce biflagellate antherozoids.
The female sex organ called archegonium is flask-shaped and produces a single egg.
The antherozoids are released into the water where they come in contact with archegonium.
An antherozoid fuses with the egg to produce the zygote.
Zygotes do not undergo a reduction division immediately.
They produce a multicellular body called a sporophyte.
The sporophyte is not free-living but is attached to the photosynthetic gametophyte and derives nourishment from it.
Some cells of the sporophyte undergo reduction division or meiosis to produce haploid spores.
These spores germinate to produce gametophyte.
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This video will help you to learn What is the Lifecycle of a Moss?
What is the Lifecycle of a Moss?
Long long years ago, a special group of plants with a sense of adventure began making the journey from water to land.
What were these plants ??
Moss !!
There are thousands of known species of mosses.
But Question is….
What plant group does Moss belong to?
Bryophytes include the various mosses and liverworts that are found commonly growing in moist shaded areas in the hills.
Bryophytes are also called amphibians of the plant kingdom because these plants can live on soil but are dependent on water for sexual reproduction.
The plant body of bryophytes is more differentiated than that of algae.
It is thallus-like and prostrate or erect and attached to the substratum by unicellular or multicellular rhizoids.
They lack true roots, stem or leaves.
However, They may possess root-like, leaf-like or stem-like structures.
Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.
Let’s learn more about Moss and it’s a life cycle
The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages:-
(1) Protonema and
(2) Leafy stage
The first stage is the protonema stage, which develops directly from a spore.
It is a creeping, green, branched and frequently filamentous stage.
The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud.
They consist of upright, slender axes bearing spirally arranged leaves.
They are attached to the soil through multicellular and branched rhizoids.
This stage bears sex organs.
The sex organs are multicellular.
The male sex organ is called the antheridium. They produce biflagellate antherozoids.
The female sex organ called archegonium is flask-shaped and produces a single egg.
The antherozoids are released into the water where they come in contact with archegonium.
An antherozoid fuses with the egg to produce the zygote.
Zygotes do not undergo a reduction division immediately.
They produce a multicellular body called a sporophyte.
The sporophyte is not free-living but is attached to the photosynthetic gametophyte and derives nourishment from it.
Some cells of the sporophyte undergo reduction division or meiosis to produce haploid spores.
These spores germinate to produce gametophyte.
Thanks for watching
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This CLEAR & SIMPLE tutorial describes the steps of the viral life cycle, including 1) Attachment 2) Entry 3) Replication 4) Biosynthesis 5) Assembly and 6) R...
This CLEAR & SIMPLE tutorial describes the steps of the viral life cycle, including 1) Attachment 2) Entry 3) Replication 4) Biosynthesis 5) Assembly and 6) Release. Find more free tutorials, videos and readings for the science classroom at ricochetscience.com
This CLEAR & SIMPLE tutorial describes the steps of the viral life cycle, including 1) Attachment 2) Entry 3) Replication 4) Biosynthesis 5) Assembly and 6) Release. Find more free tutorials, videos and readings for the science classroom at ricochetscience.com
Topics covered in this video-
00:00 Introduction to Mucor.
01:13 Structure of Mucor. [Mycelium, Rhizoidal Hyphae, Stoloniferous Hyphae, Sporangiophores]
02:21 S...
Topics covered in this video-
00:00 Introduction to Mucor.
01:13 Structure of Mucor. [Mycelium, Rhizoidal Hyphae, Stoloniferous Hyphae, Sporangiophores]
02:21 Schematic Representation of Modes of Reproduction in Mucor.
03:39 Asexual Reproduction in Mucor. [Sporangiospores, Chlamydospores, Oidiospores]
07:14 Sexual Reproduction in Mucor. [Conjugation]
09:09 Germination of Zygospore.
10:04 Life-Cycle of Mucor explained with the help of diagram.
11:18 Practice Questions.
Link to the video on Process of Human Digestion- https://youtu.be/--ugTfNHzoE
Link to the video on Human Digestive System Part 1- https://youtu.be/RdAn39ysOkk
Link to the video on Kingdom Fungi- https://youtu.be/MrJzTLgmfh8
Link to the video on Genetic Recombination in Bacteria- https://youtu.be/z4ktz_ZvwXk
Link to the video on Phases of Plant Growth and Development- https://youtu.be/-tZ6aw7_cPk
Link to the video on Structure on DNA and RNA, DNA Replication- https://youtu.be/npvs3ev87A4
Link to the video on Morphology of Flower- https://youtu.be/9GF4oodg-34
Link to the video on Vegetative Propagation in Plants- https://youtu.be/prX2rGYp0GU
Link to the video on Double Fertilization in Flowering Plants- https://youtu.be/1XjfXUgsX_A
Link to the video on Self-Pollination and Cross-Pollination- https://youtu.be/h6K_DtGS4ss
Link to the video on Cell- A basic unit of life- https://youtu.be/-36dqR-6SnE
Link to the video on Cell Wall and Plasma Membrane- https://youtu.be/ZoJtcYMU6EQ
Link to the video on Endoplasmic Reticulum and Golgi Apparatus- https://youtu.be/1fTsfxrs8Vw
Link to the video on Chloroplasts and Mitochondria- https://youtu.be/jmAauBb5yfI
Link to the video on Cell Division- Mitosis, Meiosis I, Meiosis II- https://youtu.be/p1CC8ndHJY4
Link to the video on Respiration through Lungs, Gills, Tracheae, Skin-https://youtu.be/MZOMPRUJQeg
Please like and share the videos.
Please subscribe to the channel to get all the upcoming videos on Biology.
#Mucor #Mycology #Transpicuous_Learning #Botany #Fungi
Topics covered in this video-
00:00 Introduction to Mucor.
01:13 Structure of Mucor. [Mycelium, Rhizoidal Hyphae, Stoloniferous Hyphae, Sporangiophores]
02:21 Schematic Representation of Modes of Reproduction in Mucor.
03:39 Asexual Reproduction in Mucor. [Sporangiospores, Chlamydospores, Oidiospores]
07:14 Sexual Reproduction in Mucor. [Conjugation]
09:09 Germination of Zygospore.
10:04 Life-Cycle of Mucor explained with the help of diagram.
11:18 Practice Questions.
Link to the video on Process of Human Digestion- https://youtu.be/--ugTfNHzoE
Link to the video on Human Digestive System Part 1- https://youtu.be/RdAn39ysOkk
Link to the video on Kingdom Fungi- https://youtu.be/MrJzTLgmfh8
Link to the video on Genetic Recombination in Bacteria- https://youtu.be/z4ktz_ZvwXk
Link to the video on Phases of Plant Growth and Development- https://youtu.be/-tZ6aw7_cPk
Link to the video on Structure on DNA and RNA, DNA Replication- https://youtu.be/npvs3ev87A4
Link to the video on Morphology of Flower- https://youtu.be/9GF4oodg-34
Link to the video on Vegetative Propagation in Plants- https://youtu.be/prX2rGYp0GU
Link to the video on Double Fertilization in Flowering Plants- https://youtu.be/1XjfXUgsX_A
Link to the video on Self-Pollination and Cross-Pollination- https://youtu.be/h6K_DtGS4ss
Link to the video on Cell- A basic unit of life- https://youtu.be/-36dqR-6SnE
Link to the video on Cell Wall and Plasma Membrane- https://youtu.be/ZoJtcYMU6EQ
Link to the video on Endoplasmic Reticulum and Golgi Apparatus- https://youtu.be/1fTsfxrs8Vw
Link to the video on Chloroplasts and Mitochondria- https://youtu.be/jmAauBb5yfI
Link to the video on Cell Division- Mitosis, Meiosis I, Meiosis II- https://youtu.be/p1CC8ndHJY4
Link to the video on Respiration through Lungs, Gills, Tracheae, Skin-https://youtu.be/MZOMPRUJQeg
Please like and share the videos.
Please subscribe to the channel to get all the upcoming videos on Biology.
#Mucor #Mycology #Transpicuous_Learning #Botany #Fungi
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What is BIOLOGICAL LIFE CYCLE? What does BIOLOGICAL LIFE CYCLE mean? BIOLOGICAL LIFE CYCLE meaning - BIOLOGICAL LIFE CYCLE definition - BIOLOGICAL LIFE CYCLE explanation.
Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license.
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In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, and/or sexual reproduction.
In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.
Life cycles that include sexual reproduction involve alternating haploid (n) and diploid (2n) stages, i.e., a change of ploidy is involved. To return from a diploid stage to a haploid stage, meiosis must occur. In regard to changes of ploidy, there are 3 types of cycles:
haplontic life cycle — the haploid stage is multicellular and the diploid stage is a single cell, meiosis is "zygotic".
diplontic life cycle — the diploid stage is multicellular and haploid gametes are formed, meiosis is "gametic".
haplodiplontic life cycle (also referred to as diplohaplontic, diplobiontic, or dibiontic life cycle) — multicellular diploid and haploid stages occur, meiosis is "sporic".
The cycles differ in when mitosis (growth) occurs. Zygotic meiosis and gametic meiosis have one mitotic stage: mitosis occurs during the n phase in zygotic meiosis and during the 2n phase in gametic meiosis. Therefore, zygotic and gametic meiosis are collectively termed haplobiontic (single mitotic phase, not to be confused with haplontic). Sporic meiosis, on the other hand, has mitosis in two stages, both the diploid and haploid stages, termed diplobiontic (not to be confused with diplontic).
Virus Life Cycle | Health | Biology | FuseSchool
In this video we are going to look at what happens when a virus invades a host cell. You should already have an understanding of what viruses are. If you want an introduction to viruses, watch this video first: https://youtu.be/rWkNvIUthBI
CREDITS
Animation & Design: Jean-Pierre Louw (behance.net/Jean-Pierre_Louw)
Narration: Reshenda Wakefield
Script: William Haines
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We know that your body produces more cells through mitosis. But where did your very first cell come from? It can't have been mitosis, because mitosis needs a cell to start with. As it turns out, meiosis and subsequent fertilization are the culprits! Meiosis is another kind of cell division, but it is different from mitosis. How is it different, pray tell? Watch and find out!
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We now understand that the ancestors of plants came from the ocean. But eventually, the first plants made their way out of the water and onto land. What did these plants look like? What functions were they capable of carrying out, and how did they reproduce? These plants were called bryophytes, and examples of these are mosses, liverworts, and hornworts. Let's get a closer look at these fascinating plants, and the life cycle of plants in general.
Script by Sheryl Hosler
Watch the whole Botany playlist: http://bit.ly/ProfDaveBotany
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EMAIL► [email protected]
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Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
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Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
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This video will help you to learn What is the Lifecycle of a Moss?
What is the Lifecycle of a Moss?
Long long years ago, a special group of plants with a sense of adventure began making the journey from water to land.
What were these plants ??
Moss !!
There are thousands of known species of mosses.
But Question is….
What plant group does Moss belong to?
Bryophytes include the various mosses and liverworts that are found commonly growing in moist shaded areas in the hills.
Bryophytes are also called amphibians of the plant kingdom because these plants can live on soil but are dependent on water for sexual reproduction.
The plant body of bryophytes is more differentiated than that of algae.
It is thallus-like and prostrate or erect and attached to the substratum by unicellular or multicellular rhizoids.
They lack true roots, stem or leaves.
However, They may possess root-like, leaf-like or stem-like structures.
Mosses are small flowerless plants that typically grow in dense green clumps or mats, often in damp or shady locations.
Let’s learn more about Moss and it’s a life cycle
The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages:-
(1) Protonema and
(2) Leafy stage
The first stage is the protonema stage, which develops directly from a spore.
It is a creeping, green, branched and frequently filamentous stage.
The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud.
They consist of upright, slender axes bearing spirally arranged leaves.
They are attached to the soil through multicellular and branched rhizoids.
This stage bears sex organs.
The sex organs are multicellular.
The male sex organ is called the antheridium. They produce biflagellate antherozoids.
The female sex organ called archegonium is flask-shaped and produces a single egg.
The antherozoids are released into the water where they come in contact with archegonium.
An antherozoid fuses with the egg to produce the zygote.
Zygotes do not undergo a reduction division immediately.
They produce a multicellular body called a sporophyte.
The sporophyte is not free-living but is attached to the photosynthetic gametophyte and derives nourishment from it.
Some cells of the sporophyte undergo reduction division or meiosis to produce haploid spores.
These spores germinate to produce gametophyte.
Thanks for watching
Download Extraclass.com app: - Play Store: http://bit.ly/extraclassapp
Follow us on our social media handles to stay updated.
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Happy Learning!!
“Thanks for watching”.
#Extraclass
#lifecycle
#moss
#biology
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This CLEAR & SIMPLE tutorial describes the steps of the viral life cycle, including 1) Attachment 2) Entry 3) Replication 4) Biosynthesis 5) Assembly and 6) Release. Find more free tutorials, videos and readings for the science classroom at ricochetscience.com
Topics covered in this video-
00:00 Introduction to Mucor.
01:13 Structure of Mucor. [Mycelium, Rhizoidal Hyphae, Stoloniferous Hyphae, Sporangiophores]
02:21 Schematic Representation of Modes of Reproduction in Mucor.
03:39 Asexual Reproduction in Mucor. [Sporangiospores, Chlamydospores, Oidiospores]
07:14 Sexual Reproduction in Mucor. [Conjugation]
09:09 Germination of Zygospore.
10:04 Life-Cycle of Mucor explained with the help of diagram.
11:18 Practice Questions.
Link to the video on Process of Human Digestion- https://youtu.be/--ugTfNHzoE
Link to the video on Human Digestive System Part 1- https://youtu.be/RdAn39ysOkk
Link to the video on Kingdom Fungi- https://youtu.be/MrJzTLgmfh8
Link to the video on Genetic Recombination in Bacteria- https://youtu.be/z4ktz_ZvwXk
Link to the video on Phases of Plant Growth and Development- https://youtu.be/-tZ6aw7_cPk
Link to the video on Structure on DNA and RNA, DNA Replication- https://youtu.be/npvs3ev87A4
Link to the video on Morphology of Flower- https://youtu.be/9GF4oodg-34
Link to the video on Vegetative Propagation in Plants- https://youtu.be/prX2rGYp0GU
Link to the video on Double Fertilization in Flowering Plants- https://youtu.be/1XjfXUgsX_A
Link to the video on Self-Pollination and Cross-Pollination- https://youtu.be/h6K_DtGS4ss
Link to the video on Cell- A basic unit of life- https://youtu.be/-36dqR-6SnE
Link to the video on Cell Wall and Plasma Membrane- https://youtu.be/ZoJtcYMU6EQ
Link to the video on Endoplasmic Reticulum and Golgi Apparatus- https://youtu.be/1fTsfxrs8Vw
Link to the video on Chloroplasts and Mitochondria- https://youtu.be/jmAauBb5yfI
Link to the video on Cell Division- Mitosis, Meiosis I, Meiosis II- https://youtu.be/p1CC8ndHJY4
Link to the video on Respiration through Lungs, Gills, Tracheae, Skin-https://youtu.be/MZOMPRUJQeg
Please like and share the videos.
Please subscribe to the channel to get all the upcoming videos on Biology.
#Mucor #Mycology #Transpicuous_Learning #Botany #Fungi
New life dawns - the inception of another link in a profound process Alteration and progress, nothing remains the same Like a from from the egg to the tadpole to the final stage Everything develops, learns, there's always reason almost rhyme! Like a spirit staircase that someday, somehow will end Even the world's life cycle ends when progression's altered (synthetically) I stalked the blissful fields of springtime, I comprehend and I remind And I will taste the bleary bleakness of autumn time, in due time I will find! Genesis, search, consumation - no living thing is extempted Confined knowledge cannot understand - harmonious symbiosis! Life cycles - almost everywhere! Life cycles - permanent progress!